Punch



Sept. 15, 1925.

1,553,378 H. w. HARPER PUNCH Filed June 50, 1923 2 sheets-sheen lo *5 a; 1 1p 26 ELI/1 1751597 Sept. 15, 1925.

H. W. HARPER PUNCH 2 Shaka-Sheet 2 Filed June 1923 Patented Sept. 15, 1925.

V UNITED STATES HOBER'J. W. HARPER, OF OLIET, ILLINCIS.

PUNCH.

Application filed. June 30, 1923. Serial No. 648,652.

Another object is to provide apunch having two duplicate sets of relatively movable punching dies, provided with means for moving them relative toeach other, whereby two holes may be punched simultaneously, and at any desired distance apart, .within given limits. Another objectis to provide a punch (having two duplicate, relatively movable punching dies): with a gauge, whereby the material to be punched maybe centralized with respect to the dies in order that the holes may be punched equidistant from the opposite edges of the material. Another object isto provide a punch (having duplicatepunching dies) with a gauge for determining the distance between the holes and theedge of the material which is parallel to the holes to be punched.

With these and other objects and advantages in view, this invention consists in a punch, having duplicate, relatively movable punching dies, provided with means 'for moving them relative to each other, and withmeans for operating the punches of the punching dies simultaneously. -The invention further consists in a punch, having relatively movable punching dies, and a gauge for centralizing the material to be punched, with respect to the dies. The in-' vention further consists in a punch, having duplicate punching dies and provided with a gauge for gauging the distance between the punches of the dies and one margin of.

the material which is to be punched. The invention further consists in the several novel features of construction, arrangement and combination. of parts hereinafter fully set forth and particularly defined j in the claims.

The invention is clearly illustrated in the drawings accompanying this specification, in

which: p

Fig. 1 is a plan of a punch embodying a simple form of the present-invention; F

2 is a front elevation thereof; Fig. 3 is vertical, cross section taken on the line 33 of Fig. 1; Fig. 4: is a vertical, crosssection taken on the Inlet-' 1 of 1, and Fig; 5 is a, detail, vertical, longitudinal section taken on the line 55 of Fig. 4.

Referring to said drawings, which illustrate a simple embodiment of the present inventiomthe reference character 6 designates a base mounted upon legs 7 and having a flat table 8 upon which the material to be punched is placed during the punchingoperation. In its presentform, the base 6 is formed with a lengthwise extending guideway 9 in which are mounted two duplicate sets of punching dies 10fthat are movable relative to each other in said guideway. In its present form, the guideway hastwo lengthwise extending ribs 13 which are formed with supporting ledges 11 upon which the punching dies rest, and upon which they travel when being adjusted. to their various positions.

Inasmuch as the punching dies 10 are rest upon the ledges 11 of the guideway. One foot 13 isnnotched at its upper edge to receive a ribor bead 6 which is secured to the base, and saidrib or bead acts to hold the front end of the frame 12 down on its support. The frame 12 is formed with a forhangs the bracket 14, and both brackets terminate bosses 16, 16 ginwhi'ch the punch member 17 is'guided to move in a vertical direction. In the form illustrated, the head 17 of the punch member 17 has an upwardly extending guide stem or pin 18 se curedtherein, which is guided in a'bearing aperture formed'in the boss 16, and the punchproper 19 is secured in the lower end" of the head 17* and is guided in a bearing aperture formed inthelOWer boss 16 The die 19 is formed in the foot 13.

Means are provided for reciprocating the two punches simultaneously,and in the simple'forniillustrated in they drawings, said means comprises a' lever having operative connections with both punches." As shown, he lev r c p s a red. 2 hih d-e some stationarypart otthe deyice and acts ton-retract the punchesrlg) and restore-the parts to normalfposition, A pin 2Bacts as a stop for the,;handlex and limits its backward movement. The rod '20? extends through slots 26,; formed in the'he'ads 17?; of the punch inembers andin the punching op.- wea h o 2 w n s-;up n -th a is o the-stud, shafts 22 and -moves through said --s 0 s;- t e hea ;0 the mu h m mb t'hereby i crowding fthe punches down when the handle-is inovedforward -r and retracting tfhejpuncheswhen the-handleis moved back. I It is; obvious; -thatv the two ,sets; of punches ma be; moved relative to-keach; other along the guideway --of ;;the base, and that-Lin any :;position of adjustinentgthey -wil l: be; operatiyely jj connected with the actuating level; 'The two setsrof punching; dies 10'-are -moved; relatiyeto each --other--by means which will now be described. fIn;-t-he;s'i nple form shown, said means -compri;ses}a threaded rod v 27, hav-ing' right and'left hand threads 27*, -2'Z thereon, that are thre adedly engaged in threaded apertures tor medin the trarnes 12 Of:tl18 punching die -{I11 threaded rod-27 is rotatively mounted inthe brackets 23 and has :xcollars 28 secured thereon which bear against the inner sides of the brackets; 23 and prevent endwise -n1oa en1ent of the rod 27. -One", ends: of the; rodn27 proj ects beyond the bearing bracket inwhich it-is mounted, "and ,hasa k eb 1' Whee un e he n y .which the rod anayaj-be turned in adjusting the; pimcjhing dies relative to each-other.

. -Supp0rted upon the -upper ends of the --b c ts a e upl a =--sa ge 0, ich have graduations or scale marks thereon th atfindicate the distance leet-ween I the .centers of the punches. ,The; gauges extend :toward each other qifngm" the brackets and their adjacent ends are supported from the base by brackets 31, In adjusting the fpunches to punch -holes atz a-p-i e-determined --distance apart; thaknob 29 islturned inlthe on the gauges (indicating the distance bevtween+the punchesp 1 @In: order that; @he holes; rnay} be; punehed equ distant i from; the opposite =e dgles, got the thepunches. This gauge'i's showniat 32 and the side gauge bar at 33. The gauge and gaugebar extend lengthwise of the table 8 -an'd are'located atthe surface thereof. The gauge bar 33 is slidably mounted in a -lengthwise extending slot 34 formed in the face of the table 8- and is conveniently retained in 'saidslot'by two plates 35 which are countersunk. into, the stable and. secured thereto by screws, as shown. TThe gauge bar has an upstanding end' portion 36 which torlnssa stoplagainst which the inaterial; is placed, in locating it upon the table, and the other end oi the gauge bar isfformed with .aIi'upstanding bentend portion 39 for limiting the outward movement of the gauge bar. When drawn out to its farthest point, the, end'l39 encounters oneof the plates 35. Saidfend also; acts as a pointer and coope "ateslwith thefgiiaduatioiis or scale marks on vthe: gauge .32 to, indicate the 1ocation=ofthe stop '36. The scale '32 is graduated toindic ate the distance of thestop 36 froin'a poiht c midway between the, punches, so that when the point 39. adjusted to the point on the {gauge32,fcorrcsponding to the widthflbf the sheet to be punclield, thefflne'dian line of sheet ,1 will coincide'with faj pointini'dway be tween the punches,whencanfedgebfthe sheet ,is 2 brought "into engagement Ffwith the stop When ithefsi' defgaiigeibar' is usted to locate ,a a; sheet? of given width, and one fle'ridl of the{ sheet is placed against jthe stop.

136 of the gaugc'banthe sheet is" therebycen- H tr'alized with I respect tol'the punches, 'so that Q the jholes punched therein are unade equij distant fromthe opposite edges of the sheet,

irrespectiife Ifo'f the fdistance between the .pun l e a For the pur ose, of 'punching'the holes (at. yariousdistances. from the 1 margin of the Ifsheet which is I parallel with the punched @lioles,il 'proride'an'adjustable end gauge ',has a knob "44" secured upon its: outer "end by i means of which the; tlii'eadedmer-nberc fl may "be rotated. Said 'threa'de'dfmembergis held against'f longitudinal "niovernentjby the knob jjaa iafidib ja'eollarf ts ecured, 01 he .;ber,.as'-is 'c1earlyf,.i1lustrated;infFig.f4. (By I 'turning 'tliethreaded member in thej 'proper direction, .the :end gauge ,7 bar 40 4 may "be I moifedfforward: or. backwa-"lid,fthatiis} to; say, toward er awayfrom the punches 19g {One end of, the end, uge; bar contains a pointer,

. idwlii'chf cooperates withfaig taduated"scale 4P7 ulloillhthelmme'831ml l ifd lw themetance of the end gauge bar from the punches 19.

Below the dies 19 of the punches, is a drawer 47 for receiving the punchings, and said drawer. is shown as supported upon ribs 48 carried by the base 6. A knob 49 is secured to the front of the drawer and furnishes means whereby it may be withdrawn to empty the contents.

In the operation of the device, and assuming that it is desired to punch two holes, four inches apart in a sheet of cardboard, paper or other relatively thin material which is six inches wide, and assuming that it is desired to punch said holes seven-eighths of an inch from one edge, the knob 29 is turned in the proper direction until the punch stems 18 stand in front of the graduation mark 4 on the scale 30. This brings the punches four inches apart. The side gauge bar 38 is then adjusted to bring the pointer 39 thereof into register with the graduation mark 6 on the gauge 32. The knob 44 is then turned in the proper direction until'the pointer 46 of the gauge bar registers with the graduation mark 7/8 on the gauge 17. The sheet to be punched is then placed upon the table 8, with one edge in contact with the gauge bar 10 and an edge (which is at right angles to said edge) in contact with the stop 86 of the gauge bar 33. The handle 24 is then drawn forward, thereby forcing the punches 19 through the sheet and into the apertures of the dies 19 The handle is then released and the spring 25 restores the punches to normal position.

The advantages of a punch constructed in accordance with the above description is readily apparent. It is particularly useful in punching holes in sheets or strips of paper, cardboard, covers and the like that are to be bound together, and particularly use ful in the photographers art in punching holes in photographs and covers therefor. By reason of its universal adjustability, it is very efficient since it enables the user to punch equidistant holes in sheets that are to be bound together and may be readily adjusted to accommodate sheets of varying widths where the desideratum is to have holes spaced at pre-determineddistances which vary in accordance with the width of the material.

More or less variation of the exact details of construction is possible without departing from the spirit of this invention; I desire, therefore, not to limit myself to the exact form of construction shown and described, but intend, in the following claims, to point out all of the invention disclosed herein. a

I claim as new, and desire to secure by Letters Patent:

1. In a punch, the combination of a base, brackets extending up therefrom, two duplicate sets of relatively movable punching dies slidably mounted on said base, means for moving said punching dies relative to each other, and an actuating lever for the punch members of said punching dies, said lever having a handle portion, two arms rotatively mounted on said brackets and a punch actuating rod connecting said two arms and engaging the punch members of both of said punching dies.

2. In a punch, the combinationof a base, two sets of relatively movable punching dies, mounted thereon, each punching die having a punching member formed with a transverse slot, means for simultaneously moving said punching dies toward and away from each other, and an operating lever for said punching members having a handle and having a rod extending through said slots,

and terminating in crank arms pivotally supported on the base.

3. In a punch, a punching die comprising a frame having an internally threaded aperture for engagement with a threaded rod and formed with a die, there being upper and lower apertured brackets formed on said frame, and a punching member having a stem guided in one bracket and a punch guided in the other bracket, said punching member having means for operative connectlon wlth an operating lever.

HOBERT W. HARPER. 

